/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/SifaCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label57.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 10:18:37,872 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 10:18:37,875 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 10:18:37,888 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 10:18:37,888 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 10:18:37,889 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 10:18:37,891 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 10:18:37,892 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 10:18:37,894 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 10:18:37,895 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 10:18:37,896 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 10:18:37,897 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 10:18:37,897 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 10:18:37,898 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 10:18:37,899 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 10:18:37,900 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 10:18:37,901 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 10:18:37,902 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 10:18:37,904 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 10:18:37,906 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 10:18:37,908 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 10:18:37,909 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 10:18:37,910 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 10:18:37,911 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 10:18:37,913 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-24 10:18:37,913 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-24 10:18:37,914 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-24 10:18:37,915 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-24 10:18:37,915 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-24 10:18:37,916 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-24 10:18:37,916 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 10:18:37,917 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 10:18:37,918 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 10:18:37,918 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 10:18:37,919 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 10:18:37,919 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 10:18:37,920 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 10:18:37,920 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 10:18:37,921 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 10:18:37,921 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 10:18:37,922 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 10:18:37,923 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-24 10:18:37,938 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 10:18:37,938 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 10:18:37,939 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 10:18:37,939 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 10:18:37,940 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 10:18:37,940 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 10:18:37,940 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 10:18:37,940 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 10:18:37,940 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 10:18:37,941 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 10:18:37,941 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 10:18:37,941 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 10:18:37,941 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 10:18:37,941 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 10:18:37,942 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 10:18:37,942 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 10:18:37,943 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 10:18:37,943 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 10:18:37,943 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 10:18:37,943 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 10:18:37,943 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 10:18:37,944 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 10:18:37,944 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 10:18:37,944 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 10:18:37,944 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 10:18:37,944 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 10:18:37,945 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 10:18:37,945 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 10:18:37,945 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 10:18:37,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 10:18:37,945 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 10:18:37,946 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 10:18:37,946 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 10:18:37,946 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 10:18:37,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 10:18:37,946 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 10:18:37,947 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 10:18:37,947 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 10:18:38,200 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 10:18:38,216 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 10:18:38,221 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 10:18:38,223 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 10:18:38,224 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 10:18:38,224 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label57.c [2019-11-24 10:18:38,305 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0e0b970e/70cb4e25559e40c49d2e6b0fbb590bff/FLAGf54ee0228 [2019-11-24 10:18:38,928 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 10:18:38,929 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label57.c [2019-11-24 10:18:38,944 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0e0b970e/70cb4e25559e40c49d2e6b0fbb590bff/FLAGf54ee0228 [2019-11-24 10:18:39,207 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0e0b970e/70cb4e25559e40c49d2e6b0fbb590bff [2019-11-24 10:18:39,217 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 10:18:39,218 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 10:18:39,219 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 10:18:39,220 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 10:18:39,223 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 10:18:39,224 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:18:39" (1/1) ... [2019-11-24 10:18:39,227 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79c54825 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:39, skipping insertion in model container [2019-11-24 10:18:39,227 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:18:39" (1/1) ... [2019-11-24 10:18:39,234 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 10:18:39,294 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 10:18:39,807 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 10:18:39,815 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 10:18:39,917 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 10:18:39,933 INFO L208 MainTranslator]: Completed translation [2019-11-24 10:18:39,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:39 WrapperNode [2019-11-24 10:18:39,934 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 10:18:39,935 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 10:18:39,935 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 10:18:39,935 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 10:18:39,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:39" (1/1) ... [2019-11-24 10:18:39,966 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:39" (1/1) ... [2019-11-24 10:18:40,017 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 10:18:40,018 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 10:18:40,018 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 10:18:40,018 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 10:18:40,028 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:39" (1/1) ... [2019-11-24 10:18:40,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:39" (1/1) ... [2019-11-24 10:18:40,032 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:39" (1/1) ... [2019-11-24 10:18:40,033 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:39" (1/1) ... [2019-11-24 10:18:40,053 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:39" (1/1) ... [2019-11-24 10:18:40,064 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:39" (1/1) ... [2019-11-24 10:18:40,069 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:39" (1/1) ... [2019-11-24 10:18:40,076 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 10:18:40,076 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 10:18:40,077 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 10:18:40,077 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 10:18:40,078 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 10:18:40,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 10:18:40,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 10:18:42,322 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 10:18:42,323 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-24 10:18:42,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:18:42 BoogieIcfgContainer [2019-11-24 10:18:42,328 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 10:18:42,329 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-11-24 10:18:42,329 INFO L271 PluginConnector]: Initializing Sifa... [2019-11-24 10:18:42,329 INFO L275 PluginConnector]: Sifa initialized [2019-11-24 10:18:42,331 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:18:42" (1/1) ... [2019-11-24 10:18:42,331 INFO L79 SifaObserver]: LogSizeWrapperFluid Intern Fluid=SizeLimitFluid ♦ Abstract Domain=CompoundDomain ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ CompoundDomain Intern Domains=ExplicitValueDomain;IntervalDomain ♦ Call Summarizer=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ SizeLimitFluid Max. Disjunctions=8 ♦ Simplification Technique=SIMPLIFY_QUICK ♦ SizeLimitFluid Max. DAG Size=-1 [2019-11-24 10:18:42,366 INFO L159 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-11-24 10:18:42,367 INFO L166 IcfgInterpreter]: Building call graph [2019-11-24 10:18:42,380 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-24 10:18:42,393 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-24 10:18:42,394 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-24 10:18:46,074 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2019-11-24 10:18:46,938 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 126 [2019-11-24 10:18:54,345 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2019-11-24 10:18:54,473 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2019-11-24 10:18:55,483 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 11 [2019-11-24 10:18:55,546 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 11 [2019-11-24 10:18:55,627 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 11 [2019-11-24 10:18:59,766 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2019-11-24 10:18:59,990 WARN L192 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2019-11-24 10:19:00,241 WARN L192 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2019-11-24 10:19:00,498 WARN L192 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2019-11-24 10:19:00,682 WARN L192 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 161 [2019-11-24 10:19:00,789 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 161 [2019-11-24 10:19:01,311 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 162 [2019-11-24 10:19:01,418 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 162 [2019-11-24 10:19:01,523 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-11-24 10:19:01,637 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-11-24 10:19:01,742 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-11-24 10:19:01,846 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-11-24 10:19:01,972 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 162 [2019-11-24 10:19:02,090 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 162 [2019-11-24 10:19:02,195 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-11-24 10:19:02,318 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2019-11-24 10:19:02,448 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2019-11-24 10:19:02,557 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2019-11-24 10:19:02,676 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2019-11-24 10:19:02,801 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2019-11-24 10:19:02,917 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2019-11-24 10:19:03,044 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2019-11-24 10:19:03,165 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2019-11-24 10:19:03,285 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2019-11-24 10:19:03,417 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2019-11-24 10:19:03,544 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2019-11-24 10:19:03,669 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2019-11-24 10:19:03,806 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2019-11-24 10:19:03,942 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2019-11-24 10:19:04,070 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2019-11-24 10:19:04,202 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2019-11-24 10:19:04,331 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2019-11-24 10:19:04,461 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2019-11-24 10:19:04,617 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2019-11-24 10:19:04,751 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2019-11-24 10:19:04,885 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2019-11-24 10:19:05,025 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2019-11-24 10:19:05,164 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2019-11-24 10:19:05,303 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2019-11-24 10:19:05,458 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 174 [2019-11-24 10:19:05,606 WARN L192 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 174 [2019-11-24 10:19:05,750 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2019-11-24 10:19:05,896 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 173 [2019-11-24 10:19:06,042 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 173 [2019-11-24 10:19:06,185 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2019-11-24 10:19:06,347 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2019-11-24 10:19:06,491 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2019-11-24 10:19:06,634 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2019-11-24 10:19:06,799 WARN L192 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 174 [2019-11-24 10:19:06,950 WARN L192 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 174 [2019-11-24 10:19:07,100 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2019-11-24 10:19:07,261 WARN L192 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 174 [2019-11-24 10:19:07,417 WARN L192 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 174 [2019-11-24 10:19:07,566 WARN L192 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2019-11-24 10:19:07,721 WARN L192 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 175 [2019-11-24 10:19:07,879 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 175 [2019-11-24 10:19:08,034 WARN L192 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2019-11-24 10:19:08,193 WARN L192 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2019-11-24 10:19:08,353 WARN L192 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2019-11-24 10:19:08,512 WARN L192 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2019-11-24 10:19:08,514 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 18 [2019-11-24 10:19:08,527 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 18 [2019-11-24 10:19:12,832 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2019-11-24 10:19:12,936 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2019-11-24 10:19:13,053 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2019-11-24 10:19:14,014 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2019-11-24 10:19:18,004 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-11-24 10:19:18,612 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-11-24 10:19:18,716 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-11-24 10:19:18,822 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-11-24 10:19:18,928 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-11-24 10:19:19,033 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-11-24 10:19:19,146 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-11-24 10:19:19,273 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 163 [2019-11-24 10:19:19,383 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 163 [2019-11-24 10:19:19,489 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-11-24 10:19:19,603 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2019-11-24 10:19:19,713 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2019-11-24 10:19:19,823 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2019-11-24 10:19:19,946 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2019-11-24 10:19:20,061 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2019-11-24 10:19:20,177 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2019-11-24 10:19:20,304 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 170 [2019-11-24 10:19:20,432 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 170 [2019-11-24 10:19:20,555 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2019-11-24 10:19:20,690 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2019-11-24 10:19:20,818 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2019-11-24 10:19:20,943 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2019-11-24 10:19:21,075 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 171 [2019-11-24 10:19:21,208 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 171 [2019-11-24 10:19:21,342 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2019-11-24 10:19:21,482 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2019-11-24 10:19:21,622 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2019-11-24 10:19:21,752 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2019-11-24 10:19:21,891 WARN L192 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2019-11-24 10:19:22,026 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2019-11-24 10:19:22,164 WARN L192 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2019-11-24 10:19:22,313 WARN L192 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2019-11-24 10:19:22,455 WARN L192 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2019-11-24 10:19:22,596 WARN L192 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2019-11-24 10:19:22,748 WARN L192 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 175 [2019-11-24 10:19:22,896 WARN L192 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 175 [2019-11-24 10:19:23,046 WARN L192 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2019-11-24 10:19:23,203 WARN L192 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 174 [2019-11-24 10:19:23,354 WARN L192 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 174 [2019-11-24 10:19:23,500 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2019-11-24 10:19:23,647 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2019-11-24 10:19:23,793 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2019-11-24 10:19:23,938 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2019-11-24 10:19:24,103 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 175 [2019-11-24 10:19:24,255 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 175 [2019-11-24 10:19:24,416 WARN L192 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2019-11-24 10:19:24,580 WARN L192 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 176 [2019-11-24 10:19:24,744 WARN L192 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 176 [2019-11-24 10:19:24,901 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2019-11-24 10:19:25,072 WARN L192 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2019-11-24 10:19:25,235 WARN L192 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2019-11-24 10:19:25,399 WARN L192 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2019-11-24 10:19:25,574 WARN L192 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 183 [2019-11-24 10:19:25,752 WARN L192 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 183 [2019-11-24 10:19:25,921 WARN L192 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2019-11-24 10:19:25,922 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 18 [2019-11-24 10:19:25,931 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 18 [2019-11-24 10:19:29,871 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2019-11-24 10:19:29,973 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2019-11-24 10:19:30,085 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-24 10:19:30,096 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-11-24 10:19:30,096 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-11-24 10:19:30,098 INFO L168 Benchmark]: Toolchain (without parser) took 50879.96 ms. Allocated memory was 137.4 MB in the beginning and 1.1 GB in the end (delta: 956.8 MB). Free memory was 100.2 MB in the beginning and 210.5 MB in the end (delta: -110.3 MB). Peak memory consumption was 846.5 MB. Max. memory is 7.1 GB. [2019-11-24 10:19:30,099 INFO L168 Benchmark]: CDTParser took 0.74 ms. Allocated memory is still 137.4 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-11-24 10:19:30,100 INFO L168 Benchmark]: CACSL2BoogieTranslator took 714.82 ms. Allocated memory was 137.4 MB in the beginning and 201.9 MB in the end (delta: 64.5 MB). Free memory was 100.0 MB in the beginning and 163.6 MB in the end (delta: -63.6 MB). Peak memory consumption was 29.3 MB. Max. memory is 7.1 GB. [2019-11-24 10:19:30,101 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.83 ms. Allocated memory is still 201.9 MB. Free memory was 162.9 MB in the beginning and 158.0 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2019-11-24 10:19:30,101 INFO L168 Benchmark]: Boogie Preprocessor took 58.28 ms. Allocated memory is still 201.9 MB. Free memory was 158.0 MB in the beginning and 153.2 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2019-11-24 10:19:30,102 INFO L168 Benchmark]: RCFGBuilder took 2252.28 ms. Allocated memory was 201.9 MB in the beginning and 253.2 MB in the end (delta: 51.4 MB). Free memory was 153.2 MB in the beginning and 194.3 MB in the end (delta: -41.1 MB). Peak memory consumption was 110.3 MB. Max. memory is 7.1 GB. [2019-11-24 10:19:30,103 INFO L168 Benchmark]: Sifa took 47767.57 ms. Allocated memory was 253.2 MB in the beginning and 1.1 GB in the end (delta: 841.0 MB). Free memory was 194.3 MB in the beginning and 210.5 MB in the end (delta: -16.2 MB). Peak memory consumption was 824.7 MB. Max. memory is 7.1 GB. [2019-11-24 10:19:30,107 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.74 ms. Allocated memory is still 137.4 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 714.82 ms. Allocated memory was 137.4 MB in the beginning and 201.9 MB in the end (delta: 64.5 MB). Free memory was 100.0 MB in the beginning and 163.6 MB in the end (delta: -63.6 MB). Peak memory consumption was 29.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 82.83 ms. Allocated memory is still 201.9 MB. Free memory was 162.9 MB in the beginning and 158.0 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 58.28 ms. Allocated memory is still 201.9 MB. Free memory was 158.0 MB in the beginning and 153.2 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2252.28 ms. Allocated memory was 201.9 MB in the beginning and 253.2 MB in the end (delta: 51.4 MB). Free memory was 153.2 MB in the beginning and 194.3 MB in the end (delta: -41.1 MB). Peak memory consumption was 110.3 MB. Max. memory is 7.1 GB. * Sifa took 47767.57 ms. Allocated memory was 253.2 MB in the beginning and 1.1 GB in the end (delta: 841.0 MB). Free memory was 194.3 MB in the beginning and 210.5 MB in the end (delta: -16.2 MB). Peak memory consumption was 824.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME[ms]: 47719, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 232, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 675, TOOLS_POST_TIME[ms]: 642, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME[ms]: 0, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 674, TOOLS_QUANTIFIERELIM_TIME[ms]: 492, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 23, FLUID_QUERY_TIME[ms]: 30, FLUID_QUERIES: 727, FLUID_YES_ANSWERS: 310, DOMAIN_JOIN_APPLICATIONS: 232, DOMAIN_JOIN_TIME[ms]: 40505, DOMAIN_ALPHA_APPLICATIONS: 310, DOMAIN_ALPHA_TIME[ms]: 5487, DOMAIN_WIDEN_APPLICATIONS: 4, DOMAIN_WIDEN_TIME[ms]: 301, DOMAIN_ISSUBSETEQ_APPLICATIONS: 16, DOMAIN_ISSUBSETEQ_TIME[ms]: 33, DOMAIN_ISBOTTOM_APPLICATIONS: 232, DOMAIN_ISBOTTOM_TIME[ms]: 447, LOOP_SUMMARIZER_APPLICATIONS: 12, LOOP_SUMMARIZER_CACHE_MISSES: 12, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 46560, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 46557, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 16, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 0, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 4, PATH_EXPR_TIME[ms]: 11, REGEX_TO_DAG_TIME[ms]: 9, DAG_COMPRESSION_TIME[ms]: 126, DAG_COMPRESSION_PROCESSED_NODES: 2248, DAG_COMPRESSION_RETAINED_NODES: 403 - UnprovableResult [Line: 445]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: Over-approximation of reachable states at this location is 8173#(and (<= 21 ~u~0) (<= ~x~0 24) (<= 6 ~f~0) (<= 1 ~a~0) (= ~a25~0 1) (= ~a21~0 1) (<= 23 ~w~0) (<= 3 ~c~0) (<= ~c~0 3) (<= ~z~0 26) (<= 7 ~a28~0) (not (= ~a19~0 1)) (<= ~a28~0 11) (<= 0 ~a25~0) (<= ~a19~0 1) (<= ULTIMATE.start_main_~input~0 6) (<= ULTIMATE.start_calculate_output_~input 6) (= ~a11~0 1) (<= ~a17~0 8) (<= ~w~0 23) (<= 7 ~a17~0) (<= 0 (+ ULTIMATE.start_main_~output~0 2)) (<= 5 ~e~0) (<= ~a~0 1) (<= 1 |ULTIMATE.start_calculate_output_#in~input|) (= ~a28~0 11) (<= 1 ULTIMATE.start_calculate_output_~input) (<= 1 ~a21~0) (<= ~d~0 4) (<= |ULTIMATE.start_calculate_output_#in~input| 6) (<= 25 ~y~0) (<= ~y~0 25) (<= 22 ~v~0) (<= ~a21~0 1) (<= 0 ~a11~0) (<= ~a25~0 1) (<= ~f~0 6) (<= 0 ~a19~0) (<= ~a11~0 1) (<= 4 ~d~0) (<= ~v~0 22) (<= ~u~0 21) (<= 26 ~z~0) (= ~a17~0 8) (<= ULTIMATE.start_main_~output~0 26) (<= 24 ~x~0) (<= ~e~0 5) (<= 1 ULTIMATE.start_main_~input~0)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...